Lowes offers DeWalt ELITE SERIES 1/4" x 3.5" Torx Impact Driver 5-Piece Bit Set for $8.48. Free shipping on orders over $35. 

Product Description:
Engineered to combat heavy usage, DEWALT ELITE SERIES® Impact Bits feature laser-etched highly-visible markings to help you find the right size fast. With a FLEXTORQ® Zone specifically designed to absorb impact for longer life*, these bits are Built To Last™

• Up to 2X better fitment vs MILWAUKEE®** - Superior fitment and a secure hold
• 200x longer life* - FLEXTORQ® Zone designed to absorb impact and deliver long life
• Quick bit identification - Highly-visible, laser-etched sizes
• IMPACT READY® - 1/4" hex shank rated for use in impact drivers and drills
• BUILT TO LAST™ - Part of the DEWALT ELITE SERIES® lineup
• DISCLAIMERS: *On average vs standard DEWALT® screwdriving T25 bits; **Screw engagement vs Milwaukee® Shockwave® T25 screwdriving bits; ‡T25 is a trademark of Acument Intellectual Properties, LLC, used without permission to indicate compatibility; Milwaukee and Shockwave are registered trademarks of Milwaukee Electric Tool Corp, which has not endorsed or approved this comparison